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VPN tunnel ports

VPN tunnel ports

(OP)
Hi,

I need to create a VPN between 2 RV082 cisco routers.
Behind these 2 routers there are 2 dsl routers with internet connection in both sites. So it is one dsl router + one rv082 router in one site and another one dsl router + one rv082 router in the other site.
I was trying to create it for a while and after spending a lot of time it didn't work.
Now I need to retry it.
I think the first step is opening the right ports of the dsl routers pointing to the WAN ip of the Cisco Router.
What are the ports to open for VPN?
I think they are 500 (UDP), 4500 (UPD), 443 (TCP) and 1701 (UDP). Is there someone else?
Thanks

RE: VPN tunnel ports

Two RV082 behind 2 DSL modems will work, can you configure your DSL routers into 'bridge mode'?

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